QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

13km SW of Dana Point, CA

· 14 km deep · released about 23 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orange County 33 kmLos Angeles County 101 kmSan Diego County 103 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.9 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Orange County, 33 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3258 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 23 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 660,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 470,000× the energy of this one
  3. Around the size people start to feel M 3.0 42× the energy of this one
  4. This earthquake M 1.9 about 23 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 33.3797, -117.7923. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orange County, CA 33 km (20 mi) S of here earthquakes near Orange County
Los Angeles County, CA 101 km (63 mi) SSE of here earthquakes near Los Angeles County
San Diego County, CA 103 km (64 mi) WNW of here earthquakes near San Diego County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

41 earthquakes have been recorded within 50 km since this one.

  1. 2.1 11km NNE of Trabuco Canyon, CA
  2. 2.5 11km NE of Trabuco Canyon, CA
  3. 2.0 4km W of Dana Point, CA
  4. 2.7 18km NNE of Avalon, CA
  5. 1.9 20km S of San Pedro, CA
  6. 2.1 42km ESE of Avalon, CA
  7. 1.6 12km NE of Trabuco Canyon, CA
  8. 2.2 12km S of Seal Beach, CA
  9. 1.6 12km NE of Trabuco Canyon, CA
  10. 1.7 46km SSW of Dana Point, CA
  11. 2.1 3km SSE of Huntington Beach, CA
  12. 1.9 13km NE of Trabuco Canyon, CA
  13. 2.0 8km SSW of Huntington Beach, CA
  14. 1.6 5km ESE of North Tustin, CA
  15. 1.9 13km NE of Trabuco Canyon, CA

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.